Sled knee



Patented ov. 6, 1923.

y Y` JonN n. Jiannnsoivjor sTj'riiUL, MINnEsoTA.

, VAs rriinV KNEE. i

Application A:filed December-24, Sieriiatlilfo.V` 'I i To all whomy it' may concern.'-

i'ul Improvements iny Sled Knees, of ,which i thefollowing is a specification.

`The object or' my invention is to provide a malleable knee which-,infill allow the sled to be taken apart upon thev removal of bolts. A further objectA is to lprovide ak knee which provides 'for the support of the sled beam Ywithout. the necessity o1' rigidly se curing the beam to the runner. A

el further Objectisl to provide improved bearings for the knee at the top and bot? tom o? the beam and also improved means for mounting the knee of the runner.v

rlhe invention consists generally in. various constructions and combinations, all as hereinafter described and particularly pointev ed out inthe claims.

In the accompanying drawings forming part of this specification,

Figure 1 is aside elevation of a sled runi ner withmy improved knee applied thereto, Figure 2 isa perspective view showing the position of the knee on the runner,

Figure 3 is a transverse sectional view throughthe runner,

Figure 4 is a planr view with the strap or rave iron removed,

1nV the ydra'wing, 2 -represents a sled runner of any ordinary or preferred construction. 3 is the base of the'knee, made pref# erably of malleable iron'andhaving depending i'langes -which extend down on each side Yof the runner, as shown plainly in Figure 3.

on the runner, having brackets 7 andanges 8 at the top-provided at the ends with-holes 9. The standards are slightly from the bottom upwardly and between them the endVv of the sled beam 10 is seated. Thisk beam is'provided at the top and bottom with transverse grooves 11 and beam iron plates 12 and 122L are arranged respectively above and below the beam and are provided with ribs 13 which fit into the grooves 11 in the beam,

Hole-S15 are provided in the base through which s crew's'may beinserted into the runner. Upright standards `6 are formed'- said standards. Y Y

2. The combination, 'with asled runner,

iron`s.` :The irons are held in fpl'ace prefer- Beitknown that gl, JOHN H. fiivnimsoia,A a citizen of the United States, resident of St. Paul, county of Hennepin, Sta-te: of Min# nesota, have invented certain new and useably'by means of bolts V15l whichv have their heads seated on ianges 16 of; the base 3 and project upfthroughfholes in the lbeam and havev lock nuts 17; .for securing .the plates 12.

and 12and'the beam' together.' The plate 12 has holesto receive thefupperends'of the i bolts 15 and when the lock nuts-1T are tight'- ened, the beam iron plates and the'beaniwill' be" firmly secured .together without, however, being rigidly connected with the base ofk the kneel on iwhich the beamds seated. This,

construction' Yallows for relative inf'ivementof thel runnery and beam andv provides fori an easier running Isledthan wherek there is a rigid connection between thebeam and the Y j runner.. ,A slightareof the standard 6 permits rocking of therunner and the beam lin the operation of the'sled underfa load.

The beam is held betweenthe standarda of .the knee by suitable means, Ypreferablya curved rave iron stra-p'19fthatisformed to extend across Vthefbeam withfits Vends resting upon the anges 8, bolts 2O being provided for securing thestrap to saidrlange A Space is provided between the middle/por tion of the raveiron andfthe beamjto-'al-V low Vfreedom of'movementgfofy the beam.' When the partsare i assembled, Vthelmee will 85 l. cofrrespond;tothe viei'vjinFigurel l, where f i Y tlievstrap 19 isshoivn entendingbetvveenfthe upper ends' of the bolt 15, yand yresting upon thejilangesS. Vj'lhe 12,1 as`vvell asthe one at the bottom, has lugs'Ql' formed on eachv side near the recess 14; vto lap vby and embrace the .corners ofthe beam andV grip i Vit firmly wlienthe bolts l15 Vare tightene`d.f I

- l. claim as myinventi'on :f

1. The combination, with asled runner, 'ot aknee having a base seated on thetop ofthe" runner Vand provided with depending ilanges f" upon each sideof the ruimer, standards'prof jecting upwardly from said base, 'a beam liti ting betweenV `said standards andseatedon said base, plates ittiiig th'e-upperand under surfaces of said beam and having recesses therein to receivesaidfstandards, bolts passing vertically through f said "plates, and' through said beam and securing them togeth-l er,`the engagement of saidstandards With* the walls of saidrecesses preventing-endwise movementot said beam, and means bridgjling'the space between said standards above said beam for holdinggsaid beam Vbetween of a knee seated thereon and Ycomprising a base portion-having vertical flanges to straddle said runner and laterally projecting horizontal flanges and a pair of upright standards, a bolster `having .its end fitting between said standards, a lower plate seat ed upon said laterally projecting flangesand interlocking with the underside of said bolster, an upper plate interlocking with the upper surface of said bolster', boltspassing through said bolster for securing said plates together, said plates having n ieans co-operating with said standards to prevent'longitudiual movement. of said bolster, and a plate secured to the upper portions Iof said standards and bridging the upper plate Von said vbolster and spaced therefrom.

2l. "lhe con'ibination, with a sled runner, of a knee seated thereon and having upwardly projecting diverging standards, a bolster having its end iitting between said standards and provided in its upper and under surfaces with narrow transverse grooves, a plate seated in said knee between said standards and having an upwardly projecting ribfitting the groove in the underside of said bolster, a second plate seated on the upper surface of saidv bolster and having a rib litt-,ing the groove therein, yand boltsrpassing through said plates and Vsaid bolster and securing thein together, said plates projecting beyond said bolster on each side and having recesses to receive said standards and allowing said bolster to rock between Ysaid diver-ging standards, and a strap secured to the upper portions of said standards and bridging said bolster.

4. 'The con'ibination with a sled `runner, of a knee mounted thereon, and comprising a base portion adapted to be seated on the top of the Y runner Y and VAhaving Aflanges to depend upon each 'side of the runner, said base portion having upwardly projectingr integral standards and braces therefor, said stand-- ards having rounded opposing faces and provided at their upper ends with elongated bearing surfaces in alignment substantially with,said .runneigua bolster having its end fitting between said standards and provided in its ripper and under surfaces with coin- `paratively narrow transverse grooves, a

plate seated on said knee between said standards and ha fing an upwardly projecting rib lfitting the grooves in the under side .t

of said bolster', a second plate. seated on the upper surface of said bolster and having rib .'titting the transverse groove therein, said plates projecting outwardly beyond the vertical faces of said bolster and having recesses therein to vreceive the curved portions of Said standards, 'bolts passing vertically through said bolster upon opposite sides of said grooves and through Vsaid plates `for securing theni on said bolster', and a strap bridging said second plate and having its end portions seated onthe bearing surfaces of said standards and secured thereto.

a knee having a base seated on the top of said runner, standards projecting upwardly freni said base. a beain fitting between said stand- Jona-H. ANDEnsoN.

o. The combination with a sled runner, ofY 

